Abstract
In the previous paper, the fundamental characteristics of indoor thermal environment in an air-conditioned room with the combination of cooling jet and cooling panel were examined. In this paper, the authors experimentally examine the influence of obstacles in the room such as a bed, a blind with thermal insulation etc. The bed arranged within a stagnant air region has little influence on the airflow and air temperature distribution in the room. However it has effect on the surface temperature distribution of the floor. The blind with thermal insulation has great effect of reducing the heat radiation from the window. Then, another two types of cooling systems are tested. Both system has no active cooling system for the ceiling. The ceiling is cooled passively by the supplied air with wall jet type. In one type, a supply outlet is installed at the center of the ceiling, and supply air is ejected horizontally and adheres the ceiling. In the second type, a slot supply outlet is installed at the corner between the ceiling and the wall. The latter system is rather efficient for radiative cooling by the passively cooled ceiling.
